chmestiry Final exam coming !!!

1) Which formula is equivalent to D=m/V?

• A) V=m/D

• B) V=mD/V

• C) V=D/m

2) Which of the following pairs of physical quantity and SI unit is correct ?

• A) Mass - SI unit : Gram

• D) Temperature - SI unit : Kelvin

• C) Electric current - SI unit : Volt

3) Find the number 5.68 x 10-5 written in standard form

• A) 0.00000568

• C) 56,800

• D) 0.0000568

4) Write the number 104,000 in scientific notation and round to 4 significant figures.

• A) 1.040 x 10^5

• C) 1.040 x 10^5

• D) 1.04 x 10^5

5) Shamma estimates the weight of her cat to be 8 pounds. The actual weight of the cat was 10 pounds. Find the percent error. Percent Error = /(Experimental value - Actual Value) / x 100

• A) 15%

• B) 20%

• D) 30%

6) What 2 units can be used when measuring volume?

• A) cubic meters and liters

• C) milliliters and centimeters

• D) cubic centimeters and kelvin

7) It is a measure of how close measurements come to each other when they are made in the same way

• A) Accuracy

• B) Precision

• D) Extrapolation

8) Convert: 25.0°C C to °F: °F = 1.8(°C) + 32

• A) 77° F

• C) 100° F

• D) 100° C

9) Convert: 150 °F to °C: °F = 1.8(°C) + 32

• A) 65.5° C

• B) 65.5° F

• D) 338.5° F

10) Convert: 253 °C to K: K = C +273

• A) 526 K

• D) 186 K

• B) 625 K